I believe there is... you may want to contact customercare@nefsis.com for precise details.

The only thing to watch out for is the type of Nefsis service you are on (Online or Dedicated), as the releases can differ slightly sometimes.

If you're using a Dedicated installation of Nefsis (i.e. a server located in your company), I'd probably stick with the EXEs and MSIs provided as part of that deployment (so you know everyone is on the same release).